我正在尝试从一个数组创建一个HBITMAP,该数组将包含像素的颜色值。问题是当我尝试创建一个24-bpp的Bitmap时,CreateDIBItmap正在使用BGR值而不是我想要的RGB。
创建位图的代码如下:
image_size = 600 * 600 * 3;
aimp_buffer = (char *)malloc(image_size * sizeof(char));
for (counter = 0; counter < image_size;)
{
aimp_buffer[counter++] = 255;
aimp_buffer[counter++] = 0;
aimp_buffer[counter++] = 0;
}
ads_scrbuf->avo_buffer = (void *)aimp_buffer;
ads_scrbuf->im_height = 600;
ads_scrbuf->im_width = 600;
ads_scrbuf->im_scanline = 600;
memset(&info, 0, sizeof(info));
memset(&info.bmiHeader, 0, sizeof(info.bmiHeader));
info.bmiHeader.biBitCount = 24;
info.bmiHeader.biHeight= -600;
info.bmiHeader.biWidth= 600;
info.bmiHeader.biSize = sizeof(info.bmiHeader);
info.bmiHeader.biPlanes = 1;
info.bmiHeader.biCompression = BI_RGB;
memset(&header, 0, sizeof(BITMAPV5HEADER));
header.bV5Width = 600;
header.bV5Height = 600;
header.bV5BitCount = 24;
header.bV5Size = sizeof(BITMAPV5HEADER);
header.bV5Planes = 1;
header.bV5Compression = BI_RGB;
*adsp_hBitmap = CreateDIBitmap(GetDC(ds_apiwindow), (BITMAPINFOHEADER *)&header,
CBM_INIT, (void *)ads_scrbuf->avo_buffer, &info, DIB_RGB_COLORS)
这应该为所有图像创建一个红色背景,但它是蓝色。
答案 0 :(得分:2)
DIB位图的Windows约定是BGR。你不能改变它。你只需要适应它。